LEMP refers to a collection of open-source software that is commonly used together to serve web applications. The term LEMP is an acronym that represents the configuration of a Linux operating system with an nginx (pronounced engine-x, hence the E in the acronym) web server, with site data stored in a MySQL database and dynamic content processed by PHP.

The LEMP stack represents one way to configure a web server, and is used in a number of highly-scaled applications across the web.

To learn more about LEMP, our tutorial How To Install Linux, Nginx, MySQL, PHP (LEMP stack) on Ubuntu 20.04 shares additional information and guides you through installing the LEMP stack on your web server.